<?php

/*
 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
 * Copyright (C) 2006-2009 Dan Fuhry
 *
 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
 */

// Usergroup editor

function page_Admin_GroupManager()
{
	global $db, $session, $paths, $template, $plugins; // Common objects
	global $lang;
	if ( $session->auth_level < USER_LEVEL_ADMIN || $session->user_level < USER_LEVEL_ADMIN )
	{
		$login_link = makeUrlNS('Special', 'Login/' . $paths->nslist['Special'] . 'Administration', 'level=' . USER_LEVEL_ADMIN, true);
		echo '<h3>' . $lang->get('adm_err_not_auth_title') . '</h3>';
		echo '<p>' . $lang->get('adm_err_not_auth_body', array( 'login_link' => $login_link )) . '</p>';
		return;
	}
	
	if(isset($_POST['do_create_stage1']))
	{
		if(!preg_match('/^([A-z0-9 -]+)$/', $_POST['create_group_name']))
		{
			echo '<p>' . $lang->get('acpug_err_group_name_invalid') . '</p>';
			return;
		}
		echo '<form action="'.makeUrl($paths->nslist['Special'].'Administration', 'module='.$paths->cpage['module']).'" method="post" onsubmit="if(!submitAuthorized) return false;" enctype="multipart/form-data">';
		echo '<div class="tblholder">
					<table border="0" style="width:100%;" cellspacing="1" cellpadding="4">
					<tr><th colspan="2">' . $lang->get('acpug_heading_creating_group') . ' '.htmlspecialchars($_POST['create_group_name']).'</th></tr>
					<tr>
						<td class="row1">' . $lang->get('acpug_field_group_mod') . '</td><td class="row1">' . $template->username_field('group_mod') . '</td>
					</tr>
					<tr><td class="row2">' . $lang->get('acpug_field_group_type') . '</td><td class="row2">
						<label><input type="radio" name="group_status" value="'.GROUP_CLOSED.'" checked="checked" /> ' . $lang->get('groupcp_type_hidden') . '</label><br />
						<label><input type="radio" name="group_status" value="'.GROUP_REQUEST.'" /> ' . $lang->get('groupcp_type_closed') . '</label><br />
						<label><input type="radio" name="group_status" value="'.GROUP_OPEN.'" /> ' . $lang->get('groupcp_type_request') . '</label><br />
						<label><input type="radio" name="group_status" value="'.GROUP_HIDDEN.'" /> ' . $lang->get('groupcp_type_open') . '</label>
					</td></tr>
					<tr>
						<th class="subhead" colspan="2">
							<input type="hidden" name="create_group_name" value="'.htmlspecialchars($_POST['create_group_name']).'" />
							<input type="submit" name="do_create_stage2" value="' . $lang->get('acpug_btn_create_stage2') . '" />
						</th>
					</tr>
					</table>
					</div>';
		echo '</form>';
		return;
	}
	elseif(isset($_POST['do_create_stage2']))
	{
		if(!preg_match('/^([A-z0-9 -]+)$/', $_POST['create_group_name']))
		{
			echo '<p>' . $lang->get('acpug_err_group_name_invalid') . '</p>';
			return;
		}
		if(!in_array(intval($_POST['group_status']), Array(GROUP_CLOSED, GROUP_OPEN, GROUP_HIDDEN, GROUP_REQUEST)))
		{
			echo '<p>Hacking attempt</p>';
			return;
		}
		$e = $db->sql_query('SELECT group_id FROM '.table_prefix.'groups WHERE group_name=\''.$db->escape($_POST['create_group_name']).'\';');
		if(!$e)
		{
			echo $db->get_error();
			return;
		}
		if($db->numrows() > 0)
		{
			echo '<p>' . $lang->get('acpug_err_already_exist') . '</p>';
			return;
		}
		$db->free_result();
		$q = $db->sql_query('INSERT INTO '.table_prefix.'groups(group_name,group_type) VALUES( \''.$db->escape($_POST['create_group_name']).'\', ' . intval($_POST['group_status']) . ' )');
		if(!$q)
		{
			echo $db->get_error();
			return;
		}
		$e = $db->sql_query('SELECT user_id FROM '.table_prefix.'users WHERE username=\''.$db->escape($_POST['group_mod']).'\';');
		if(!$e)
		{
			echo $db->get_error();
			return;
		}
		if($db->numrows() < 1)
		{
			echo '<p>' . $lang->get('acpug_err_bad_username') . '</p>';
			return;
		}
		$row = $db->fetchrow();
		$id = $row['user_id'];
		$db->free_result();
		$e = $db->sql_query('SELECT group_id FROM '.table_prefix.'groups WHERE group_name=\''.$db->escape($_POST['create_group_name']).'\';');
		if(!$e)
		{
			echo $db->get_error();
			return;
		}
		if($db->numrows() < 1)
		{
			echo '<p>' . $lang->get('acpug_err_bad_insert_id') . '</p>';
			return;
		}
		$row = $db->fetchrow();
		$gid = $row['group_id'];
		$db->free_result();
		$e = $db->sql_query('INSERT INTO '.table_prefix.'group_members(group_id,user_id,is_mod) VALUES('.$gid.', '.$id.', 1);');
		if(!$e)
		{
			echo $db->get_error();
			return;
		}
		$g_name = htmlspecialchars($_POST['create_group_name']);
		echo "<div class='info-box'>
						<b>" . $lang->get('acpug_heading_info') . "</b><br />
						" . $lang->get('acpug_msg_create_success', array('g_name' => $g_name)) . "
					</div>";
	}
	if(isset($_POST['do_edit']) || isset($_POST['edit_do']))
	{
		// Fetch the group name
		$q = $db->sql_query('SELECT group_name,system_group,group_rank FROM '.table_prefix.'groups WHERE group_id='.intval($_POST['group_edit_id']).';');
		if(!$q)
		{
			echo $db->get_error();
			return;
		}
		if($db->numrows() < 1)
		{
			echo '<p>Error: couldn\'t look up group name</p>';
		}
		$row = $db->fetchrow();
		$name = htmlspecialchars($row['group_name']);
		$db->free_result();
		if(isset($_POST['edit_do']))
		{
			if(isset($_POST['edit_do']['del_group']))
			{
				if ( $row['system_group'] == 1 )
				{
					echo '<div class="error-box">' . $lang->get('acpug_err_nodelete_system_group', array('g_name' => $name)) . '</div>';
				}
				else
				{
					$q = $db->sql_query('DELETE FROM '.table_prefix.'group_members WHERE group_id='.intval($_POST['group_edit_id']).';');
					if(!$q)
					{
						echo $db->get_error();
						return;
					}
					$q = $db->sql_query('DELETE FROM '.table_prefix.'groups WHERE group_id='.intval($_POST['group_edit_id']).';');
					if(!$q)
					{
						echo $db->get_error();
						return;
					}
					echo '<div class="info-box">' . $lang->get('acpug_msg_delete_success', array('g_name' => $name, 'a_flags' => 'href="javascript:ajaxPage(\'' . $paths->nslist['Admin'] . 'GroupManager\');"')) . '</div>';
					return;
				}
			}
			if(isset($_POST['edit_do']['save_name']))
			{
				if(!preg_match('/^([A-z0-9 -]+)$/', $_POST['group_name']))
				{
					echo '<p>' . $lang->get('acpug_err_group_name_invalid') . '</p>';
					return;
				}
				// determine rank
				$group_rank =& $_POST['group_rank'];
				if ( $_POST['group_rank'] !== 'NULL' )
				{
					$group_rank = intval($group_rank);
					if ( empty($group_rank) )
					{
						echo '<p>Hacked rank ID</p>';
						return;
					}
				}
				$row['group_rank'] = $group_rank;
				$q = $db->sql_query('UPDATE '.table_prefix.'groups SET group_name=\''.$db->escape($_POST['group_name']).'\',group_rank = ' . $group_rank . '
						WHERE group_id='.intval($_POST['group_edit_id']).';');
				if(!$q)
				{
					echo $db->get_error();
					return;
				}
				else
				{
					echo '<div class="info-box" style="margin: 0 0 10px 0;"">
									' . $lang->get('acpug_msg_name_update_success') . '
								</div>';
				}
				$name = htmlspecialchars($_POST['group_name']);
				
			}
			$q = $db->sql_query('SELECT member_id FROM '.table_prefix.'group_members
 														WHERE group_id='.intval($_POST['group_edit_id']).';');
			if(!$q)
			{
				echo $db->get_error();
				return;
			}
			if($db->numrows() > 0)
			{
				while($delrow = $db->fetchrow($q))
				{
					if(isset($_POST['edit_do']['del_' . $delrow['member_id']]))
					{
						$e = $db->sql_query('DELETE FROM '.table_prefix.'group_members WHERE member_id='.$delrow['member_id']);
						if(!$e)
						{
							echo $db->get_error();
							return;
						}
					}
				}
			}
			$db->free_result();
			if(isset($_POST['edit_do']['add_member']))
			{
				$q = $db->sql_query('SELECT user_id FROM '.table_prefix.'users WHERE username=\''.$db->escape($_POST['edit_add_username']).'\';');
				if(!$q)
				{
					echo $db->get_error();
					return;
				}
				if($db->numrows() > 0)
				{
					$row = $db->fetchrow();
					$user_id = $row['user_id'];
					$is_mod = ( isset( $_POST['add_mod'] ) ) ? '1' : '0';
					$q = $db->sql_query('INSERT INTO '.table_prefix.'group_members(group_id,user_id,is_mod) VALUES('.intval($_POST['group_edit_id']).','.$user_id.','.$is_mod.');');
					if(!$q)
					{
						echo $db->get_error();
						return;
					}
					else
					{
						
						echo '<div class="info-box" style="margin: 0 0 10px 0;"">
										' . $lang->get('acpug_msg_user_added', array('username' => htmlspecialchars($_POST['edit_add_username']))) . '
									</div>';
					}
				}
				else
					echo '<div class="warning-box">' . $lang->get('acpug_err_username_not_exist', array('username' => htmlspecialchars($_POST['edit_add_username']))) . '</div>';
			}
			generate_cache_userranks();
		}
		$sg_disabled = ( $row['system_group'] == 1 ) ?
 						' value="' . $lang->get('acpug_btn_cant_delete') . '" disabled="disabled" style="color: #FF9773" ' :
 						' value="' . $lang->get('acpug_btn_delete_group') . '" style="color: #FF3713" ';
		
		// build rank list
		$q = $db->sql_query('SELECT rank_id, rank_title FROM ' . table_prefix . 'ranks');
		if ( !$q )
			$db->_die();
		$rank_list = '<option value="NULL"' . ( $row['group_rank'] === NULL ? ' selected="selected"' : '' ) . '>--</option>' . "\n";
		while ( $rank_row = $db->fetchrow() )
		{
			$rank_list .= '<option value="' . $rank_row['rank_id'] . '"' . ( $rank_row['rank_id'] == $row['group_rank'] ? ' selected="selected"' : '' ) . '>' . htmlspecialchars($lang->get($rank_row['rank_title'])) . '</option>' . "\n";
		}
 						
		echo '<form action="'.makeUrl($paths->nslist['Special'].'Administration', 'module='.$paths->cpage['module']).'" method="post" onsubmit="if(!submitAuthorized) return false;" enctype="multipart/form-data">';
		echo '<div class="tblholder">
					<table border="0" style="width:100%;" cellspacing="1" cellpadding="4">
					<tr><th>' . $lang->get('acpug_heading_edit_name') . '</th></tr>
					<tr>
						<td class="row1">
							' . $lang->get('acpug_field_group_name') . ' <input type="text" name="group_name" value="'.$name.'" />
						</td>
					</tr>
					<tr>
						<td class="row1">
							' . $lang->get('acpug_field_group_rank') . ' <select name="group_rank" />' . $rank_list . '</select>
						</td>
					</tr>
					<tr>
						<th class="subhead">
							<input type="submit" name="edit_do[save_name]" value="' . $lang->get('acpug_btn_save_name') . '" />
							<input type="submit" name="edit_do[del_group]" '.$sg_disabled.' />
						</th>
					</tr>
					</table>
					</div>
					<input type="hidden" name="group_edit_id" value="'.htmlspecialchars($_POST['group_edit_id']).'" />';
		echo '</form>';
		echo '<form action="'.makeUrl($paths->nslist['Special'].'Administration', 'module='.$paths->cpage['module']).'" method="post" onsubmit="if(!submitAuthorized) return false;" enctype="multipart/form-data">';
		echo '<div class="tblholder">
					<table border="0" style="width:100%;" cellspacing="1" cellpadding="4">
					<tr><th colspan="3">' . $lang->get('acpug_heading_edit_members') . '</th></tr>';
		$q = $db->sql_query('SELECT m.member_id,m.is_mod,u.username FROM '.table_prefix.'group_members AS m
 													LEFT JOIN '.table_prefix.'users AS u
 														ON u.user_id=m.user_id
 														WHERE m.group_id='.intval($_POST['group_edit_id']).'
 													ORDER BY m.is_mod DESC, u.username ASC;');
		if(!$q)
		{
			echo $db->get_error();
			return;
		}
		if($db->numrows() < 1)
		{
			echo '<tr><td colspan="3" class="row1">' . $lang->get('acpug_msg_no_members') . '</td></tr>';
		}
		else
		{
			$cls = 'row2';
			while($row = $db->fetchrow())
			{
				$cls = ( $cls == 'row1' ) ? 'row2' : 'row1';
				$mod = ( $row['is_mod'] == 1 ) ? $lang->get('acpug_lbl_member_mod') : '';
				echo '<tr>
								<td class="'.$cls.'" style="width: 100%;">
									' . $row['username'] . '
								</td>
								<td class="'.$cls.'">
									'.$mod.'
								</td>
								<td class="'.$cls.'">
									<input type="submit" name="edit_do[del_'.$row['member_id'].']" value="' . $lang->get('acpug_btn_remove_member') . '" />
								</td>
							</tr>';
			}
		}
		$db->free_result();
		echo '</table>
					</div>
					<input type="hidden" name="group_edit_id" value="'.htmlspecialchars($_POST['group_edit_id']).'" />';
		echo '</form>';
		echo '<form action="'.makeUrl($paths->nslist['Special'].'Administration', 'module='.$paths->cpage['module']).'" method="post" onsubmit="if(!submitAuthorized) return false;" enctype="multipart/form-data">';
		echo '<div class="tblholder">
					<table border="0" style="width:100%;" cellspacing="1" cellpadding="4">
						<tr>
							<th>' . $lang->get('acpug_heading_add_member') . '</th>
						</tr>
						<tr>
							<td class="row1">
								' . $lang->get('acpug_field_username') . ' ' . $template->username_field('edit_add_username') . '
							</td>
						</tr>
						<tr>
							<td class="row2">
								<label><input type="checkbox" name="add_mod" /> ' . $lang->get('acpug_field_make_mod') . '</label>
								' . $lang->get('acpug_field_make_mod_hint') . '
							</td>
						</tr>
						<tr>
							<th class="subhead">
								<input type="submit" name="edit_do[add_member]" value="' . $lang->get('acpug_btn_add_user') . '" />
							</th>
						</tr>
					</table>
					</div>
					<input type="hidden" name="group_edit_id" value="'.htmlspecialchars($_POST['group_edit_id']).'" />';
		echo '</form>';
		return;
	}
	echo '<h3>' . $lang->get('acpug_heading_main') . '</h3>';
	echo '<form action="'.makeUrl($paths->nslist['Special'].'Administration', 'module='.$paths->cpage['module']).'" method="post" onsubmit="if(!submitAuthorized) return false;" enctype="multipart/form-data">';
	$q = $db->sql_query('SELECT group_id,group_name FROM '.table_prefix.'groups ORDER BY group_name ASC;');
	if(!$q)
	{
		echo $db->get_error();
	}
	else
	{
		echo '<div class="tblholder">
					<table border="0" cellspacing="1" cellpadding="4" style="width: 100%;">
					<tr>
					<th>' . $lang->get('acpug_heading_edit_existing') . '</th>
					</tr>';
		echo '<tr><td class="row2"><select name="group_edit_id">';
		while ( $row = $db->fetchrow() )
		{
			if ( $row['group_name'] != 'Everyone' )
			{
				echo '<option value="' . $row['group_id'] . '">' . htmlspecialchars( $row['group_name'] ) . '</option>';
			}
		}
		$db->free_result();
		echo '</select></td></tr>';
		echo '<tr><td class="row1" style="text-align: center;"><input type="submit" name="do_edit" value="' . $lang->get('acpug_btn_edit_stage1') . '" /></td></tr>
					</table>
					</div>
					</form><br />';
	}
	echo '<form action="'.makeUrl($paths->nslist['Special'].'Administration', 'module='.$paths->cpage['module']).'" method="post" onsubmit="if(!submitAuthorized) return false;" enctype="multipart/form-data">';
	echo '<div class="tblholder">
				<table border="0" cellspacing="1" cellpadding="4" style="width: 100%;">
				<tr>
				<th colspan="2">' . $lang->get('acpug_heading_create_new') . '</th>
				</tr>';
	echo '<tr><td class="row2">' . $lang->get('acpug_field_group_name') . '</td><td class="row2"><input type="text" name="create_group_name" /></td></tr>';
	echo '<tr><td colspan="2" class="row1" style="text-align: center;"><input type="submit" name="do_create_stage1" value="' . $lang->get('acpug_btn_create_stage1') . ' &raquo;" /></td></tr>
				</table>
				</div>';
	echo '</form>';
}

?>
